<div>
  <button class="button button-dark" ng-click="showPopup()" ng-show="isShow">
    Show
  </button>
  <button class="button button-primary" ng-click="showConfirm()" ng-show="isConfirm">
    Confirm
  </button>
  <button class="button button-positive" ng-click="showAlert()" ng-show="isAlert">
    Alert
  </button>
</div>
